The Netflix show depicts the story of Kim Mo-mi, a South Korean woman who is self-conscious about her physical appearance. Kim decides to cover her face with a mask and become a live streamer. When Kim wears a mask, she becomes a totally different character with a new voice. Mask Girl became the most-watched content on Netflix's non-English chart only two weeks after its release on August 18.
Hybe said in a statement on August 30 that Supertone's voice morphing technology was applied in Mask Girl. The live streamer's voice was made by analyzing the voices of two actresses -- Nana and Lee Han-byeol -- and combining them. Along with actress Ko Hyun-jung, Lee and Nana played the main character to express Kim's identity in different stages of life.
Previously, Supertone provided its audio technique for Disney+'s drama series "Big Bet" to reproduce the voice of Choi Min-sik, a 61-year-old veteran actor who was playing the role of a young character in his 30s. The technology was also used for "Masquerade," a digital single rolled out in May this year. The song was produced by transforming the voice of Lee Hyun, a member of the disbanded vocal group 8Eight.
On January 31, Hybe secured a 56.1 percent stake in Supertone by investing 45 billion won ($39.9 million). During an interview with Billboard in April, Hybe's chairman Bang Si-hyuk mentioned that the development of generative artificial intelligence (AI) technology is one of Hybe's main strategies. Generative AI services are used to produce on-demand images, text, and videos.